.about-us-section {
    padding: 50px 0;
    background: #ffffff;
    width: 100%;
    max-width: 80%;
    margin: 0 auto;
}

.about-us-container {
    width: 100%;
    max-width: 1536px;
    padding-right: 15px;
    padding-left: 15px;
    margin: 0 auto;
}

.about-us-row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
    justify-content: center;
}

.about-us-flex-row {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
}

.about-us-half-width {
    flex: 0 0 48%;
    max-width: 48%;
    box-sizing: border-box;
}

/* 左侧内容样式 - 标题和副标题 */
.left-content {
    text-align: left;
    padding-right: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-block-start: 1em;
}

.left-content h2 {
    margin-bottom: 20px;
    text-align: left;
}

.left-content .subtitle {
    font-size: 1.2em;
    color: #666;
    margin: 10px 0 0 0;
    text-align: left;
    font-weight: 300;
}

/* 右侧内容样式 - 正文和按钮 */
.right-content {
    text-align: left;
    padding-left: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.right-content .content {
    color: #333;
    margin-bottom: 20px;
    text-align: left;
}

.right-content .details-button {
    display: inline-block;
    background: white;
    color: #009F71;
    padding: 10px 35px;
    border-radius: 30px;
    text-decoration: none;
    margin-top: 20px;
    align-self: flex-start;
    border: 1px solid #009F71;
    font-size: 18px;
    margin-left: auto;
    font-weight: 400;
}

.right-content .details-button:hover {
    background: #009F71;
    color: white;
    border: 1px solid #009F71;
}

/* 响应式设计 */
@media (max-width: 1500px) {
    .about-us-container {
        max-width: 1400px;
    }
}

@media (max-width: 1200px) {
    .about-us-container {
        max-width: 1100px;
    }
}

@media (max-width: 1024px) {
    .about-us-section {
        max-width: 90%;
    }

    .about-us-container {
        max-width: 950px;
    }

    .about-us-half-width {
        flex: 0 0 45%;
        max-width: 45%;
    }

    .left-content .subtitle {
        font-size: 1.1em;
    }

    .right-content .content {
        font-size: 0.95em;
    }
}

@media (max-width: 911px) {
    .about-us-section {
        max-width: 85%;
    }

    .about-us-container {
        max-width: 100%;
    }

    .about-us-half-width {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .right-content {
        padding-left: 0;
    }

    .left-content h2 {
        font-size: 1.6em;
    }

    .left-content .subtitle {
        font-size: 1em;
    }

    .right-content .content {
        font-size: 0.9em;
    }
}

@media (max-width: 768px) {
    .about-us-section {
        padding: 30px 0;
    }

    .about-us-half-width {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .right-content {
        padding-left: 0;
    }

    .left-content h2 {
        font-size: 1.5em;
    }

    .left-content .subtitle {
        font-size: 0.95em;
    }

    .right-content .content {
        font-size: 0.85em;
    }
}

@media (max-width: 576px) {
    .left-content h2 {
        font-size: 1.3em;
    }
}